Just sharing a sample code to close quote as won through C#
WinQuoteRequest winQuoteRequest = new WinQuoteRequest(); Entity quoteClose = new Entity("quoteclose"); quoteClose.Attributes["quoteid"] = new EntityReference("quote", new Guid("015816C2-2F10-E611-8112-3863BB353ED0")); quoteClose.Attributes["subject"] = "Quote Close" + DateTime.Now.ToString(); winQuoteRequest.QuoteClose = quoteClose; winQuoteRequest.Status = new OptionSetValue(-1); organizationProxy.Execute(winQuoteRequest);
Hope it helps..